Home / 354,294,554.60-531,441,831.90-280,317,967.40

Finding the Fourth Proportional to 354,294,554.60, 531,441,831.90 and 280,317,967.40

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Solution

The fourth proportional to 354,294,554.60, 531,441,831.90 and 280,317,967.40 is: 420,476,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,554.60 : 531,441,831.90 = 280,317,967.40 : x
  2. Step 2: Convert to fraction form
    354,294,554.60/531,441,831.90 = 280,317,967.40/x
  3. Step 3: Cross multiply
    354,294,554.60x = 531,441,831.90 × 280,317,967.40
  4. Step 4: Simplify right side
    354,294,554.60x = 148,972,694,109,540,448
  5. Step 5: Solve for x
    x = 148,972,694,109,540,448/354,294,554.60
  6. Step 6: Final answer
    x = 420,476,951.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.